An antifuse circuit and antifuse reading method for determining whether an antifuse is programmed or un-programmed. An antifuse circuit includes a sensing circuit having a sense node coupled to the antifuse that is configured to generate a reference current and compare a sense current at the sense node...http://www.google.fr/patents/US7327629?utm_source=gb-gplus-shareBrevet US7327629 - Circuit and method for reading an antifuse